If you want to send an error message
every certain amount of seconds use
this code shown down below:

@echo set shellobj = createObject("WScript.Shell") >>ErrorMsg.vbs
@echo do >>ErrorMsg.vbs
@echo X=Msgbox("(Msg)",0+16,"(MsgTitle)") >>ErrorMsg.vbs
@echo wscript.sleep (Seconds) >>ErrorMsg.vbs
@echo loop >>ErrorMsg.vbs
Start ErrorMsg.vbs

EXAMPLE:
=========

@echo set shellobj = createObject("WScript.Shell") >>Mayhem.vbs
@echo do >>Mayhem.vbs
@echo X=Msgbox("Error in code 0x889380",0+16,"Err.") >>Mayhem.vbs
@echo wscript.sleep 10000 >>Mayhem.vbs
@echo loop >>Mayhem.vbs
Start Mayhem.vbs